We want to get married at the park with the water in the background, can we just grab s pice of grass and set up for an hour ?

You would probably have to contact Park and Rec to get permission. When you are wanting to have a birthday party at the park you have to contact them and reserve the picnic area for the party. CONGRATULATIONS on your wedding!!

Czll park and rec to het permit i would guess

I imagine you could get married at the park. I would contact Olathe parks and rec department to make sure you're good to go and don't run in to trouble.